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Table 4 Factors associated with sexually transmitted diseases diagnosis among MSM. INI/FIOCRUZ, Rio de Janeiro, Brazil

From: Chlamydia trachomatis, Neisseria gonorrhoeae and syphilis among men who have sex with men in Brazil

Characteristics PRa (CI 95 %)
NAPRb P value APRc P value
Age (each ten years) 0.82 (0.64-1.05) 0.110d 0.78 (0.60-1.00) 0.049
Less than 11 years of schooling 0.96 (0.54-1.71) 0.885 - -
Skin color – Non White 1.00 (0.62-1.62) 0.996 - -
No. of male sexual partners in the last 12 months (each ten partners) 1.01 (1.00-1.02) 0.095d   
Had a female sexual partner in the last 12 months 1,19 (0,59-2,39) 0,623 - -
Had a stable partner in the in the last 3 months 1.01 (0.62-1.63) 0.977 - -
HIV-positive male sexual partner in the last 3 months 1.46 (0.88-2.42) 0.146d - -
High from alcohol use before/during sex in the last 3 months 0.95 (0.58-1.54) 0.832 - -
Stimulant use before/during sex in the last 3 months 1.52 (0.86-2.70) 0.148d - -
Commercial sex in the last 3 months 1.21 (0.75-1.95) 0.431 - -
Anal intercourse with men in the last 3 months (Ref: Only insertive)     
Only receptive 0.55 (0.19-1.55) 0.255 - -
Both 1.20 (0.60-2.42) 0.606 - -
None sexual partner 1.21 (0.52-2.83) 0.658 - -
Unprotected anal sex with men in the last 3 months 1.21 (0.74-1.97) 0.447 - -
HIV infected 1.72 (0.91-3.24) 0.094d 2.05 (1.03-4.08) 0.040
  1. aPR = Prevalence Ratio
  2. bNAPR = Non-Adjusted Prevalence Ratio
  3. cAPR = Adjusted Prevalence Ratio; 260 participants were included in the multivariate models; 15/275 (5.4 %) had missing data in at least one covariate
  4. d Variables with P < 0.25 in univariate analysis and were entered in the initial multivariate model